Patent GB-190216835-A (GB)
Title: Improvements in Addressing and like Printing Machines.
Filed: 1902-07-29
Granted: 1902-09-11
Abstract: 16,835. Belknap, C. A., and Automatic Addressing Machine Co. July 29. Addressing-machines. - Relates to means for printing addresses &c. through a series of stencils. On the frame A are two holders g, g' in which the lower open ends of removable and interchangeable boxes or hoppers H, H<1> are placed. The boxes rest on shoulders at g<2>, g<3>, and the lower parts of the holders form a continuation for guiding the stencils. The stencils C are placed in the box H and holder g, and are fed singly from the lower end to the printing-mechanism, and are then placed up into the holder g<1> and box H'. The stencil carrier B is pivoted at B', and is rocked by an arm B<2> and cam D<1> on the shaft D. In it are formed side grooves or guides for the stencils as they pass from the holder y to position over the impression bed A'. The feeder consists of a slide E, guided by slots b<2> in the plate b<1> on the arm B, and having bevelled hooks or shoulders e, which pass under the stencil cards and engage and feed out the lower one as the slides move out. The feedslide is operated by a link F<1>, lever F, and cam D<2>. A pivoted stop E' is provided to engage the stencil card, and prevent it and those in front of it from creeping back. A spring arm E<2> is fixed to a cross-piece E<3> between the sides of the arm B, and bears upon the middle parts of the stencil cards to keep them flat and in proper engagement with their guideways. The plate b<1> is cut out at b<3>, to provide an opening above the bed A'. The inking and impression rollers I, I' have rollers on the ends of their shafts which run in guides on each side of the arm B. The roll I is journalled in the ends of a pair of links i<2> pivoted to the forks of a lever is operated by the cam D<3>. The roll I<1> is journalled in a pair of short links i<4> pivoted to the links i<2>. The rollers are in contact, and are geared together so that the roll I<1> rotates faster than the roll I. The roll I is rotated by a pinion on its shaft gearing with a rack on the arm B. The roll I is guided in a straight path j<1>, while the impression roll I<1> is guided in a path l, which has a drop at the point l<3> to the lower path l<1> so that the roll I' is brought down on to and rolled over the printing-part of the stencil when it is over the bed A' and the arm B is down. The distance to which the roll I' moves is regulated by eccentric pins k' in the split ends of the links i<3>. A spring L connects the links i<4>, i', and tends to lift the roll I'. The roll I is inked by contact with the under padded or fabric-covered side p' of the ink reservoir P. The reservoir P, Fig. 16, is closed by a cap P<x> in which is a removable plug P<7> having a vent closed by a pin P<9>. The bottom has circular series of holes p<2> with which register holes p<9> in a plate p<3>. The plate p<3> may be rotated to regulate the supply of ink by means of its central stem p<6> having an arm P<2> above the cover. A spring p<8> presses the plate p<3> firmly down on the bottom of the reservoir. In the stem p<6> is a vent-hole P<3> having a fine continuation P<4> into the reservoir. Balls P<5> close the vent P<4>, and the rocking of the arm B causes the balls to move and open the vent sufficiently for the supply of ink to the pad. The pad p<4> is secured by a ring p<5>. The reservoir is rotated in guides P<1> on the arm B, by its ratchet teeth P<1> which are engaged by a pawl on a slide having a projecliun q engaged by an extension q<1> of the lever i<3>. After the impression is made from the end stencil, it is lifted by the arm B past.pivoted catches m<1> on the lower end of the holder g'. These catches are on vertical pivots m, which have arms pressed by springs m' to hold the catches as shown in Fig. 13<a>. The catches are cam-shaped, so that they swing out of the way when the stencil engages them in its upward movement, but will not yield to downward pressure. The stencil being printed from is held down by gravity dogs, pivoted on the shaft of the inking-roll I, which slide over the stencil card or frame. In each side of the holder g<1> is a spring presser-foot which engages and holds the second stencil when the arm B rises to lift the end stencil into the holder g<1>.